{
    "fields": [
    <#list fdList as fo>
        {"field": "${fo.field}", "rename": "${fo.rename}", "cnname": "${fo.cnname}", "options": {}}<#if fo_has_next>,</#if>
    </#list>
    ],
    "tables": [
    <#list tbList as to>
        {"field": "${to.field}", "rename": "${to.rename}", "join": "${to.join}", "on": "${to.on}"}<#if to_has_next>,</#if>
    </#list>
    ],
    "group_by": [
    <#list gbList as gob>
        "${gob}" <#if gob_has_next>,</#if>
    </#list>
    ]
}